When printer escaping is disabled,
a character prints as itself; it is sent directly to the output stream.
When printer escaping is enabled,
then #\ syntax is used.
When the printer types out the name of a character, it uses the same table as the #\ reader macro would use; therefore any character name that is typed out is acceptable as input (in that implementation). If a non-graphic character has a standardized name_5, that name is preferred over non-standard names for printing in #\ notation. For the graphic standard characters, the character itself is always used for printing in #\ notation--even if the character also has a name_5.
For details about the #\ reader macro, see section Sharpsign Backslash.
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